1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/tests/test_allocator.c Sat Dec 30 14:32:42 2023 +0100
1.3 @@ -0,0 +1,145 @@
1.4 +/*
1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.6 + *
1.7 + * Copyright 2023 Mike Becker, Olaf Wintermann All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions are met:
1.11 + *
1.12 + * 1. Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + *
1.15 + * 2. Redistributions in binary form must reproduce the above copyright
1.16 + * notice, this list of conditions and the following disclaimer in the
1.17 + * documentation and/or other materials provided with the distribution.
1.18 + *
1.19 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.20 + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.21 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.22 + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
1.23 + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.24 + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.25 + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.26 + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.27 + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.28 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.29 + * POSSIBILITY OF SUCH DAMAGE.
1.30 + */
1.31 +
1.32 +#include "cx/test.h"
1.33 +
1.34 +#include "cx/allocator.h"
1.35 +
1.36 +CX_TEST(test_allocator_default) {
1.37 + CX_TEST_DO {
1.38 + CX_TEST_ASSERT(cxDefaultAllocator->cl != NULL);
1.39 + }
1.40 +}
1.41 +
1.42 +CX_TEST(test_allocator_default_malloc) {
1.43 + void *test = cxMalloc(cxDefaultAllocator, 16);
1.44 + CX_TEST_DO {
1.45 + CX_TEST_ASSERT(test != NULL);
1.46 + // we cannot assert sth. but valgrind will detect an error
1.47 + memcpy(test, "0123456789ABCDEF", 16);
1.48 + }
1.49 + free(test);
1.50 +}
1.51 +
1.52 +CX_TEST(test_allocator_default_calloc) {
1.53 + char *test = cxCalloc(cxDefaultAllocator, 8, 2);
1.54 + CX_TEST_DO {
1.55 + CX_TEST_ASSERT(test != NULL);
1.56 + for (int i = 0; i < 16; i++) {
1.57 + CX_TEST_ASSERT(test[i] == 0);
1.58 + }
1.59 + }
1.60 + free(test);
1.61 +}
1.62 +
1.63 +CX_TEST(test_allocator_default_realloc) {
1.64 + char *test = calloc(8, 1);
1.65 + memcpy(test, "Test", 5);
1.66 + CX_TEST_DO {
1.67 + test = cxRealloc(cxDefaultAllocator, test, 16);
1.68 + CX_TEST_ASSERT(test != NULL);
1.69 + CX_TEST_ASSERT(0 == strcmp(test, "Test"));
1.70 + }
1.71 + free(test);
1.72 +}
1.73 +
1.74 +CX_TEST(test_allocator_default_free) {
1.75 + void *test = malloc(16);
1.76 + CX_TEST_DO {
1.77 + // we cannot assert sth. but valgrind will detect an error
1.78 + cxFree(cxDefaultAllocator, test);
1.79 + CX_TEST_ASSERT(true);
1.80 + }
1.81 +}
1.82 +
1.83 +CX_TEST(test_allocator_reallocate) {
1.84 + void *test = calloc(8, 1);
1.85 + memcpy(test, "Test", 5);
1.86 + CX_TEST_DO {
1.87 + int ret = cxReallocate(cxDefaultAllocator, &test, 16);
1.88 + CX_TEST_ASSERT(ret == 0);
1.89 + CX_TEST_ASSERT(test != NULL);
1.90 + CX_TEST_ASSERT(0 == strcmp(test, "Test"));
1.91 + }
1.92 + free(test);
1.93 +}
1.94 +
1.95 +CX_TEST(test_allocator_reallocate_low_level) {
1.96 + void *test = calloc(8, 1);
1.97 + memcpy(test, "Test", 5);
1.98 + CX_TEST_DO {
1.99 + int ret = cx_reallocate(&test, 16);
1.100 + CX_TEST_ASSERT(ret == 0);
1.101 + CX_TEST_ASSERT(test != NULL);
1.102 + CX_TEST_ASSERT(0 == strcmp(test, "Test"));
1.103 + }
1.104 + free(test);
1.105 +}
1.106 +
1.107 +static void *test_allocator_mock_failing_realloc(
1.108 + __attribute__((__unused__))void *p,
1.109 + __attribute__((__unused__))void *d,
1.110 + __attribute__((__unused__))size_t n
1.111 +) {
1.112 + return NULL;
1.113 +}
1.114 +
1.115 +CX_TEST(test_allocator_reallocate_fails) {
1.116 + // Mock an allocator that always returns NULL on realloc
1.117 + cx_allocator_class mock_cl;
1.118 + mock_cl.realloc = test_allocator_mock_failing_realloc;
1.119 + CxAllocator mock = {&mock_cl, NULL};
1.120 +
1.121 + void *test = calloc(8, 1);
1.122 + memcpy(test, "Test", 5);
1.123 + void *original = test;
1.124 + CX_TEST_DO {
1.125 + int ret = cxReallocate(&mock, &test, 16);
1.126 + // non-zero return code because of the failure
1.127 + CX_TEST_ASSERT(ret != 0);
1.128 + // the test pointer was not changed and still points to the same memory
1.129 + CX_TEST_ASSERT(test == original);
1.130 + CX_TEST_ASSERT(0 == strcmp(test, "Test"));
1.131 + }
1.132 + free(test);
1.133 +}
1.134 +
1.135 +CxTestSuite *cx_test_suite_allocator(void) {
1.136 + CxTestSuite *suite = cx_test_suite_new("allocator");
1.137 +
1.138 + cx_test_register(suite, test_allocator_default);
1.139 + cx_test_register(suite, test_allocator_default_malloc);
1.140 + cx_test_register(suite, test_allocator_default_calloc);
1.141 + cx_test_register(suite, test_allocator_default_realloc);
1.142 + cx_test_register(suite, test_allocator_default_free);
1.143 + cx_test_register(suite, test_allocator_reallocate);
1.144 + cx_test_register(suite, test_allocator_reallocate_fails);
1.145 + cx_test_register(suite, test_allocator_reallocate_low_level);
1.146 +
1.147 + return suite;
1.148 +}
